Assigwos to the scholl mfg



March 12, 1929. s. BERMAN mam. romsnme momma Filed D90- 1925 5 Sheets-Sheet l March 12, 1929.- s. BERMAN METAL POLISHIN G MACHINE Filed Dec. 2, 1925 5 Sheets-Sheet azzzzzeZ .Bermazz March 12, 1929.

S. BERMAN METAL POLISHING MACHINE Samuel Berzzzazz JETVEET LIE S. BERMAN METAL POLISHING MACHINE March 12, 1929.

5 Sheets-Sheet 4 Filed Dec. 2, 1925 March 12, 1929. s, BgRMAN 1,104,933

METAL POLISHING MACHINE Filed Dec. 3, 1925 5 Sheets-Sheet 5 JDVE IE 5222222222 I fierzzzazz Fatented Mar. 12, 1929.

Fllil;

sAMnnnnEnMAinen (intense, simmers, essren'on TO THE SCHOLL MFG. co, Inc, or

cnrcneo, rumors, a CORPORATION or new YORK.

METALrEOLiSHINGJ MAenInn.

Application filed December :This invention relates to an improved metal polishing mach ne adapted to afford a convenient arrangement for the buifing of strips of: German silver or other metal ma ai line VV of Figure 4;

'terial wliich,[when advanced into the machine over a reciprocating table; arebrought into the field of operation of a rotatable buffin mechanism which acts to efliciently polish the entire suface of the strip of metal.

0 It is an object of this invention to provide an improved metal polishing machine adapted to buff the surface of a strip or bar of metal as itis advanced through the machine with a composite movement below a 5 rotatable buffer by means of a reciprocating 'tableandfeeding means on said tabled It is also an objectof thisinvention to provide an improved buffing machine wherein a' reciprocating table is I provided 0 with feeding mechanisms for'the purpose of advancing a sheet of metal below a rotatable buffer adapted to act transversely ofthe line of movement of .the: strip of metal through the machine.

It is an important ob ect of this invention to provide an improved buflingmachine wherein a rotatable buffer is adapted to act,

on. a strip'lof metal as the strip "of metal is advanced longitudinally through the machine by feeding'mechanisms carried on a reciprocating table, the direction of motion of which is transversely t0 tha lo the Strip of metal through the machine thereby imparting a' composite movement to the strip of metal as it is acted upon by the rotating buffer.

Other and further important objects ofthis invention will be apparent from the disclosures in the specification and the accompanying drawings. i

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully' described. On the drawings: i 5 Figure ,"1' is {a top plan view of a metal polishing machine embodying the principles of this invention with the metal supporting table at the feeding end of the machine omitted; j V a I v Figure 2 is-a side elevation'of the machine with parts shown broken away;

Figure-3 is an'end elevation of the machine takenon line;IIIIII ofFigure 25 Figure 4: is an enlargedfragmentary'side in section and with-parts 2, 1925. SeriahNo. 72,724.

nachine shown connected to a fragmentary portion of the machine proper;

Figure 7 is an enlarged detail section taken on line VIIVI [I of Figure 6;

Figure 8 is an enlarged detail sectional view taken on line VIIL-VIII of Figure 6; and V Figure 9 is an enlarged fragmentary detail view taken on line IX-IX of Figure 6. As shown on thedrawings: 1 The'reference numeral 1 indicates a machine base or framework having securely mounted longitudinally on the top, thereof a driving motor 2 having a buiiing wheel 3 engaged on one projecting end of-the motor shaft 4. Secured on the other projecting end of the motor shaft 4 is a pinion 5 which is in mesh with a pinion 6 on a shaft 7 of gear reducing mechanism 8. Securelyv mounted on the second projecting end of the gear reduction shaft 7 is a sprocket 9 around which an endless chain '10 istrained. The driving chain 10 is also trained around a sprocket 11 which is securely mounted upon a shaft 12 journalled in suitable bearings 13 secured on the rear side of the machine framework. 1. Mounted on theshaft-12 adjacent the sprocket 11' is a pawl-clutch 14 adapted to be operated by a clutch lever 15. Mounted on oneend of the shaft 12 is a slotted eccentric block 16 provided with suitable graduationsas. shown in Figure 3to permit an eccentric pin 17 to be adjustably secured in different positions with respect to the eccentric 16 for the purpose ofvarying the stroke of a reciprocating table 18. Pivotally connected to thelug or arm 19 of the reciprocating table 18 is one end-of an eccentric connecting rod 20, the other end of which is pivotally engaged on the eccentric pin 17, as clearly illustrated in-Figure 3. r v

The horizontally reciprocating table 18 is slidably engaged upon a dove-tail guide 21' integrally formed longitudinally upon the top of a vertically adjustable supporting feedingend of the machine framework 1.

A raising and lowering mechanism for the table 22 isprovided and comprises a rotatable lifting screw 24 havinga bevel gear 25 keyed I on the lower end thereof with said bevel gear 25 meshingwith a bevel gear 26 mounted on a stub shaft 27. The stub shaft 27 is journailed in a suitable bearing 28, as clearly Securely mounted upon the top of the supporting table 22 are two pairs of bearing a; brackets 31 in which a pair of parallel shafts 32 are journalled. The shafts 32 project throughlthe lower portions of bearing yokes 33 which are rigidly secured upon the top of the reciprocating table 18. Each of the shafts 32 is provided with two diametrically opposite keys 34 upon which are slidably en- 1 gaged lower material feed rollers 35. The lower feed rollers35 are adapted to reciprocate with the reciprocating table 18 with said lower feed rollers having a sliding movement longitudinally with respect to the ro-' tatable shafts. 32. Engaged on one end of each of the lower feed rollers 35 is a gear '36 which meshes with an upper gear 37 engaged on one end ofan upper material feed roller 38. It will thus be noted that the two upper material feed rollers 38 are adapted be driven by a small spiral gear 44.

to receive a drive from the lower feed rollers 35. The upper feed rollers 38 are mounted on shafts 39, the ends of which are journailed in suitable bearing blocks 40 which areslidably engaged in the bearing brackets 33. Springs 41 are mounted in the bearing brackets above the slidable bearing blocks 40 for the purpose of resiliently holding the bearing blocks in a lowered position. Adjusting screws 42 are provided in the top of each of the bearing brackets 33 for the pur-' pose of adjusting the tension of the springs 41.

Engaged on the outer rear end of each of the shafts 32 is a spiral gear 43 adapted to The two spiral gears '44 are mounted upon a shaft 45 journalled in suitable bearings 46 upon the top of the rear end of the supporting table22.

Y. Connected to one end of the shaft .45 is a universal coupling or joint 47 Whichis also connected to a solid universal shaft 48 which telescopes into a hollow universal shaft 49.

Connected to one end of the hollow univerwork 1.

fed into the machine. 'ble brackets 69 are provided withan end flange 7 O which, together with the end flange 62 on the table bracket 61, afford guides or stops for. the strip of material as ing 52 mounted upon the machine frame- Secured on the outer end of the stub shaft 511s a large gear 53 which receives a drive from a meshing small gear or pinion 54 which 18 secured on one end of I the driving shaft 12. It will thus be seen that'the'm'aterial feedrollers 35 a nd38 are adapted to be driven from the shaft 12 through the large gear 53 and the universal shaft mechanisms which operate the spiral gears 44 and 43 to cause rotat on of the shafts 32 on which the lower feed rollers 35 are slidably keyed. e I

A. strip ofGerinan silver or other metal 55, which is to be polished or buffed, is ad-1 mitted 7 into the machine over a I slnftable material supporting runway or table comprising (as illustrated in Figure 6) a slotted j clamping plate 56 which is bolted securely,

to the outer side of the reciprocating table 18. plate 56 is an outwardly projecting sleeve 57 in which one end of a rod or shaft 58 is secured. The outer end of the shaft 58 projects through a. sleeve 59 which is integrally formed beneath a transversesleeve 60. The two sleeves 59 and 60 are disposed at right angles to one another with the upper sleeve 60 beingintegrally formed on i the under side of a table bracket 61 'prov vided with an integral flange 62 at one end 38. The table bracket 61 is supported in position by means of a transverse pin or shaft 63 which projects'through the sleeve 60 ofthe table bracket 61. .The pin 63 is mounted tohave the "ends thereof projectwith corresponding adjustments of the sup-. porting table 22 and the reciprocating ta- Integrally formed on the clamping thereof. 'The top surface of the table. bracket 61 is in a plane with the meetmg surfaces of the feed. rollers 35 and.

ble l8. Securely mounted at spaced intervals on the shaft 58 are the sleeves 68 of intermediate table brackets 69 over the .top of which the material 55 is adapted to be The intermediate ta- .it is advanced into the machine.

buifedrby the buffing wheel 3, is advanced over the reciprocating table 18 and passes longitudinally through the machine over a reciprocating discharge table mechanism,

whichis also connected to the reciprocating table 18. The discharge table or support for the polished material comprises abracket 71 which is bolted to the inner side of the reciprocating table 18, as illustrated in Figure 2. Supported in the bracket7l is one end of a table shaft 72, the other end of which'is supported in a bracket ,73 similar in construction to the table bracket 5962 illustrated in Figure 9. The table bracket,

73 is slidably mounted 011a shaft or pin 74 which isv vertically adjustable in slotted guide members-W formed on the machine "frame. clamped in an ad usted 'POSltlOn bymeans The; shaft 74 is adapted to be of a-clamping handle or lever. 76 --Mounted on thetable shaft 72 are a plurality of spaced intermediatetable brackets 77 pro- :69 illustrated in Figure 8. It will thus be seen that the strip of material is adapted to'be advanced over a reciprocating entrance feed table, then over thereciprocatmg table- 18'betWeen the feed roller mechanisms, and is finally discharged through the machine over the reciprocating discharge table mcchanism.

The operation is as-follows:

The improved bufiing or metal polishing machine of this invention is adaptedto be set in operation by means of a control switch 78 which governs the operation of the drivmg motor-2r With the motor 2 setin operation, the-bufiing wheelB is rotated at a high rate ofspeed and the drive'from the motor 2 is,tran'smitted'through the speed reduction mechanism 8 to the chain 10 which drives the shaft12. The drive from the shaft 12 transmitted through the pinion 54 and the gear 53 to the universal shaft mcchanisn'is to cause rotation of the shafts 82 which serves to rotate the lower feed rollers 35. The eccentric 16, rotated by means of the shaft 12,'causes operation .of 5 the eccentric connectmg' rod QO WlHClI 1n turn acts to reciprocate the table 18 upon the supporting bracket or table 22. With the bufiing wheel 3, the reciprocating "table 18 and the material feed rollers set in operation .as hereinbetore described, a strip of German silver, or-other metal 55, is positioned upon the outer feed table'brackets 61 and 69 (Figure 6) and is guided into the machine by means of the guide flanges 62 and 70 on the table brackets. The table brackets being n'iountedon the shaft'58, reciprocate with the table 18 thereby permitting the inner end of thematerial' 55 to be pushed between the first pairof feed rollers 85 and 88 which act to gradually advance the stripo'f ma- ;terial over the reciprocating table in the fieldqorf operation 0t thebufling wheel 3.

'The two pairs of feed rollers act to advance the sheet of material lon 'itudinall throu 'h O b the machine, pulling the same over the outer or feed table mechanism across the recip locating table 18, and then discharging the same :over the discharge table mechanism atter the rapidlyrotating bulfing wheel has 'POllSllQCl the upper surface of the strip 01' material. The material is thus advanced over a continuously,reciprocating table mechanism comprising the outer table, the intermediate table 18 and the inner table. The strip oi material 55, as described, is adapted to be advanced longitudinally through the machine beneath the rapidlyrotating bufling wheeli by means of theiieed roller mechanisms 85-38 and simultaneously with the loi'igitudinal advance of the material, said v, material is adapted to be reciprocated transversely of the machine by means of the re-' ciprocating table 18 and its extensions. The material is thus advanced through the ma chine with a composite movement relative to the rapidly rotating bufling wheel 3 which .tt'rictionally engages the upper surface of the strip of material and rapidly buifs or polishes said surface. All parts of the upper surface of the strip of material are quickly and eiiiciently butli'ed as the material is fed through the machine. The buffed or of bufiing strips of material of different thicknesses, the reciprocating feed table and its extensions maybe adjusted vertically by means of the screw 24 operable bythe wheel 29, said screw adapted to either raise or lower the supporting table 22 with respect to the machine frame so that the reciprocating table 18 may be adjusted vertically with respect to the buffing surface of the bufilng wheel 3. The outer and inner table extensions of the reciprocating table 18 are adapted to be adjusted with respect to their stationary supports by means of the clamping mechanisms 67 and-76, respectively. The vertical adjustment of the reciprocating table mechanism also affords a means fol-compensating for the wear of the peripheral surf cc of the bufiing wheel 3. f V The drive from the speed reduction gear mechanism 8 by meansof the chain 10 to the material feed mechanisms on the table 18 and the eccentric mechanisms governing the reciprocation of the table 18 are controlled by means or the clutch 14 and the clutch lever 15. I i r I am aware that many changes may be made, and numerous details of construction may be varied through a wide range without departingirom the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, other- *WISQ than necessitated by the PIlOl Ztl't.

I claim as my invention: 1. A metal polishing machine comprising v a frame, a VGI'blCfiJly ad usted bracket 1n0unted on said frame, a driving motor mounted on said frame, a butiing Wheel mounted on outer ends or said extension shafts, material teed mechanisms mount-ed on said table,

means for driving the same from said speed reduction mechanism to cause material on the material supporting brackets on one side of the table to be advanced over said table beneath the butting Wheel and then over the material supporting brackets on the 0pposito'side of said table, and drive transmit-- ting means connecting the speed reduction mechanism With sald table to cause the table,

the extension shafts and the material sup-j porting brackets to be reciprocated, to cause the material bein advanced throu h the machine to have a composite movement.

2. A material polishing machine comprising a frame, a bufling Wheel mounted thereon, means for driving the same, a vertically adjustable table support on said frame, a

reciprocating table on said table support adapted to be actuated by said driving 'means, table extensions pro ecting from opposite sides'ofsaid reciprocating table, supports for slidably supporting the ends of said table extensions, and material feet means on said reciprocating table adapted to be operated from said driving means to cause a material to be adv'anced'over the table extensions and said table and through the cause polishing of the material.

.45" field 01" operation of the bufiing Wheel to In a metal polishing machine the combination with a framework, of .a'table support vertically adjustable thereon, a reciprocating table on said table support, table eX- tensions connected to opposite sides of said table, supports tor-slidably supporting the ends of a table extensions, and means permitting vert cal ad ustment 0]": sa1d;sup-

)orts' WllGl'GlJ' the table extensions ma be adjusted vertically With the vertical adjust-- ment of thereciprocating table. V

4-. In a metal polishing macl 'nethe combination with a framework, of a table support slidably mounted thereon, means for ortically adjusting the table support, a reciprocating table on said table "support, ans for operating the, same, tableextensions secured to oppositesides'of the recipe rocating table, supports" for slidably supporting the ends of said table extensions, and

mean :5 permitting vertical adjustment of said supports to permit the table extensions to be adjusted vertically with the reciprocating table when the reciprocating table support is vertically adjusted with respect tothe framework.

In testimony whereofI have hereunto sub-' scribed my name,

SAMUEL BERMAN. 

